In the very near future, the Earth will pass through the ominous "Dark Rift" gravitational plane and superheat from the inside out. In the ensuing chaos -- complete with tectonic plate shifts, super storms, volcanoes, and other nasty stuff -- 6.7 billion people will die, and the few that do manage to survive will be forced to take refuge high in the hills or in bunkers deep underground.

For decades, two clans of survivors -- one made up of former military men and women, the other (of course!) hardened criminals -- will exist in seclusion from one another, living off what little they can scavenge. When the Sun finally peeks through the clouds again, those that endured will emerge from their shelters and return to a world quite unlike the one they once knew...

Well, except for all the killing, that is. Don't worry, there's still plenty of that.